Westermo MDI-110 Series, Руководство пользователя

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1. Insert positive and negative wires into V+ and V ‐ contacts respectively of
the terminal block connector
2. Tighten the wire ‐ clamp screws to prevent DC wires from being loosened.
3. Power 1 and Power 2 support power redundancy and polarity reverse
protection functions.
4. Positive and negative power system inputs are both accepted, but Power 1
and Power 2 must apply the same mode.
Note 1: It is a good practice to turn off input and load power, and to unplug
power terminal block before making wire connections. Otherwise,
your screwdriver blade can inadvertently short your terminal
connections to the grounded enclosure.
Note 2: The range of the suitable electric wire is from 12 to 24 AWG.
Note 3: If the 2 power inputs are connected, the switch will be powered from
the highest connected voltage. The unit will alarm for loss of power,
either PWR1 or PWR2.
Note 4: To use the UL Listed Power supply with output Rating 12 ‐ 48 Vdc,
minimum 1 A
2.3 Wiring Digital Input
The switch provides 2 digital inputs. It allows users to connect the termination
units’ digital output and manage/monitor the status of the connected unit. The
Digital Input pin can be pulled high or low; thus the connected equipments can
DC1 DC2